/*-+-*****************************************************************************
 Copyright (C) 2009-2012 Oceanside Software Corporation (R)
 Dallas, Texas

 Author       : Jason T. Brower
 Purpose      : This file is part of a point-of-sale software package
                originally written for Table-Service Restaurants.
              
 Date         : July 8th of 2012
              
 History      : The application that this software file belongs to was 
                written over a 3-Year period.  The first version was written
                in C# .Net 3.5 using Windows Forms.  Being new to .Net at
                the time, I soon learned of Windows Presentation Foundation,
                liked the graphics capabilities and databinding so I
                migrated to WPF.  When the .Net 4.0 framework was released
                the application was migrated from 3.5 to 4.0. Now today,
                .Net 4.5 RC is out and I was already in process of migrating
                before I made this public.
                
Excuse Me     : Please excuse the coding style, it is not representative of
                my typical work.  During the three years I was under a very
                tight budget, constantly running out of funding and was 
                working 18 hour days hyped up on 5-Hour Energy.  The 
                design is not textbook.  It is monolythic because of
                previous issues I will not get into.  There are few comments
                in the code and the ones that are there may be incorrect.
                
What it is not: This is not the exact version that I took through PA-DSS 2.0
                nor is it the exact version running at my customer sites.
                I removed some details for security purposes including some
                encryption algorithms.  The reporting was removed because
                I was including a third party library that cannot be 
                published with this Open Source.
                
What it is    : This application has been running at high volume restaraunts
                for over a year.  It never freezes, crashes or does anything
                unexpected.  So long as it is built, installed and configured
                correctly, it is a strong system that we can all enhance.

Contact       : Please note that I can no longer work for free.  However, you
                can reach me at information@oceansidesw.com.                                                      

*********************************************************************************/
using System.Collections.Generic;
using System.Data.Objects.DataClasses;
using System.Windows;
using System.Windows.Controls;

namespace Oceanside
{
    public class DbLinkedBoundListView : ListView, IDbLinkedControl
    {
        /// <summary>
        /// 
        /// </summary>
        List<EntityObject> mPreviousCollection = null;

        PageImpBaseClass.FORM_MODES_ENUM mUnlockedMode = PageImpBaseClass.FORM_MODES_ENUM.UNITIALIZED;
        /// <summary>
        /// 
        /// </summary>
        public static readonly DependencyProperty BoundEntityProperty;
        public EntityObject BoundEntity
        {
            get { return (EntityObject)GetValue(BoundEntityProperty); }
            set { SetValue(BoundEntityProperty, value); }
        }
        /// <summary>
        /// 
        /// </summary>
        static DbLinkedBoundListView()
        {
            BoundEntityProperty = DependencyProperty.Register(
                                     "BoundEntity",
                                      typeof(EntityObject),
                                      typeof(DbLinkedBoundListView));
        }

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        public bool Save()
        {
            return true;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="acceptChanges"></param>
        public void Lock(PageImpBaseClass.FORM_MODES_ENUM currMode)
        {
            if (mUnlockedMode == PageImpBaseClass.FORM_MODES_ENUM.EDIT_FORM && currMode == PageImpBaseClass.FORM_MODES_ENUM.LOCKED)
            {
                //ItemCollection currCol = ((ItemCollection)this.Items);
                //List<EntityObject> newCollection;

                //if (currCol != null)
                //{
                //    newCollection = new List<EntityObject>();

                //    foreach (object obj in currCol)
                //    {
                //        EntityObject eo = (EntityObject)obj;
                //        newCollection.Add(eo);
                //    }

                //    if (!IsEqual(newCollection, mPreviousCollection))
                //    {
                //        CompactDominicaEntities.SendConfigChangeToServer(BoundEntity);
                //    }
                //}
            }
            mUnlockedMode = PageImpBaseClass.FORM_MODES_ENUM.UNITIALIZED;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="mode"></param>
        public void Unlock(PageImpBaseClass.FORM_MODES_ENUM mode)
        {
            mUnlockedMode = mode;
            ItemCollection currCol = this.Items;

            if (currCol != null)
            {
                mPreviousCollection = new List<EntityObject>();

                foreach (object obj in currCol)
                {
                    EntityObject eo = (EntityObject)obj;
                    mPreviousCollection.Add(eo);
                }
            }
            else
            {
                mPreviousCollection = null;
            }
        }
    }
}
